Osa Weather (Next 3 days): The snow forecast for Osa is: Some drizzle, heaviest during Sun night. Very mild (max 13°C on Sun morning, min 1°C on Fri night). Winds increasing (light winds from the SSW on Sat afternoon, strong winds from the WSW by Sun night).
Osa Weather (Days 4-6): Heavy rain (total 46.0mm), heaviest during Tue night. Very mild (max 12°C on Thu afternoon, min 4°C on Mon night). Wind will be generally light.
| Resort | Snow Depth | Temp. (°C) | Wind (km/h) | Weather | ||
|---|---|---|---|---|---|---|
| Top Lift: | 2 |  | ||||
| Bottom Lift: | 2 | |
Saturday 21 | Sunday 22 | Monday 23 | Tuesday 24 | Wednesday 25 | ||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
|  | | | |  |  | | |  |  |  |  | | | | |
clear | clear | clear | clear | clear | some clouds | rain shwrs | clear | some clouds | some clouds | cloudy | mod. rain | heavy rain | mod. rain | cloudy | some clouds | |
km/h | ||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
— | — | — | — | — | — | 1 | — | — | — | — | 9 | 31 | 6 | — | — | |
max °C | 2 | 10 | 11 | 6 | 13 | 12 | 11 | 9 | 9 | 4 | 11 | 7 | 7 | 7 | 7 | 7 |
min °C | 1 | 6 | 6 | 4 | 9 | 11 | 1 | 4 | 5 | 4 | 7 | 7 | 6 | 6 | 6 | 5 |
-3 | 3 | 5 | 0 | 6 | 8 | -3 | 1 | 3 | 4 | 4 | 3 | 4 | 5 | 4 | 3 | |
53 | 43 | 44 | 56 | 79 | 86 | 72 | 35 | 22 | 29 | 50 | 96 | 99 | 94 | 95 | 94 | |
1400 | 1800 | 2350 | 2800 | 2700 | 3000 | 2350 | 1400 | 2600 | 2800 | 2650 | 2700 | 2700 | 2750 | 2950 | 3200 | |
 | — | 6:50 | — | — | 6:48 | — | — | 6:48 | — | — | 6:47 | — | — | 6:46 | — | — |
 | — | — | 5:59 | — | — | 5:59 | — | — | 6:00 | — | — | 6:00 | — | — | 6:01 | — |
Some drizzle, heaviest during Sun night. Very mild (max 13°C on Sun morning, min 1°C on Fri night). Winds increasing (light winds from the SSW on Sat afternoon, strong winds from the WSW by Sun night).
Heavy rain (total 46.0mm), heaviest during Tue night. Very mild (max 12°C on Thu afternoon, min 4°C on Mon night). Wind will be generally light.
Latest snow reports near Osa:
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | 1 cm |
| Last snowfall: | 18 Feb 2026 |
| Snow Alerts | Create Alert |
0.3 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
0.8 | Powder days Fresh snow, limited sun, any wind. |
0.3 | Bluebird days Average snow, mostly sunny, light wind. |
The above table gives the weather forecast for Osa at the specific elevation of 700 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Osa. To access the weather forecasts for the other elevations, use the tab navigation above the table. For a wider view of the weather, check out the Weather Map of Japan.
Click here to read further information on freezing levels and how we forecast our temperatures.
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